CN104080161A - Physical uplink shared channel transmission method and user equipment - Google Patents
Physical uplink shared channel transmission method and user equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J4/00—Combined time-division and frequency-division multiplex systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1887—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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Abstract
The invention discloses a physical uplink shared channel (PUSCH) transmission method. The method comprises the steps that UE receives configuration information from a base station, wherein the configuration information enables the UE to work in a TDD reconfiguration work mode, and TDD uplink and downlink configuration of the UE changes according to the instruction of the base station in the TDD reconfiguration work mode; the UE determines the timing relation from UL Grant to a PUSCH, the timing relation from a PHICH to the PUSCH and the timing relation from the PUSCH to the PHICH and detects the UL Grant and/or the PHICH according to the determined timing relations; the UE sends PUSCH data based on the determined timing relations according to the detected UL Grant and/or PHICH. The invention further discloses user equipment. By the adoption of the PUSCH transmission method and the user equipment, the UE can transmit the PUSCH normally in the TDD reconfiguration work mode, the PUSCHs of as many uplink subframes as possible can be transmitted under frequent change of TDD uplink and downlink configuration, and PUSCH synchronization of as many uplink subframes as possible can be continued before and after the change of TDD uplink and downlink configuration.
Description
Technical field
The application relates to mobile communication technology field, and particularly, the application relates to the transmission method of Physical Uplink Shared Channel (PUSCH).
Background technology
Long Term Evolution (LTE, Long Term Evolution) technical support Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplexing) and two kinds of duplex modes of time division duplex (TDD, Time Division Duplexing).Fig. 1 is the frame structure schematic diagram of the TDD system of LTE.The length of each radio frames is 10 milliseconds (ms); be divided into the field that two length are 5ms; each field comprises time slot and 3 special domain that 8 length are 0.5ms; 3 special domain total lengths are 1ms; 3 special domain are respectively descending pilot frequency time slot (DwPTS, Downlink pilot time slot), protection interval (GP, Guard period) and uplink pilot time slot (UpPTS; Uplink pilot time slot), each subframe is made up of two continuous time slots.
Transmission in TDD system comprises: by base station to the transmission (being called descending) of subscriber equipment (UE, User Equipment) and the transmission (being called up) to base station by UE.Based on the frame structure shown in Fig. 1, uplink and downlink share 10 subframes in every 10ms time, and each subframe or configuration to descending, are called sub-frame of uplink by configuration to up subframe to up or configuration, and configuration is called to descending sub frame to descending subframe.In TDD system, support 7 kinds of TDD upstream and downstream configurations, as shown in table 1, D represents descending sub frame, and U represents sub-frame of uplink, and S represents the above-mentioned special subframe that comprises 3 special domain.
Table 1TDD upstream and downstream allocation list
The TDD system of LTE is supported HARQ mechanism, and its general principle comprises: base station is that UE distributes ascending resource; UE utilizes ascending resource to send upstream data to base station; Base station receives upstream data and sends HARQ indication information to UE, and UE carries out the re-transmission of upstream data according to this indication information.Concrete, UE carries upstream data by PUSCH, base station is by Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) carrying PUSCH scheduling and controlling information, be uplink authorization (UL Grant), base station is by physical mixing retransmission indicating chanel (PHICH) carrying HARQ indication information.In said process, the timing position that PUSCH once transmits and follow-up re-transmission timing position determine the timing relationship based on pre-configured, comprise that the timing relationship of UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and PUSCH, to the timing relationship of PHICH, are hereinafter collectively referred to as PUSCH synchronous HARQ timing relationship by above-mentioned three timing relationships.
First, introduce UL Grant in LTE and LTE-A or the PHICH timing relationship to PUSCH.
Timing relationship to UL Grant to PUSCH, supposes that UE is subframe sequence number at descending sub frame n(n, lower same) receive UL Grant, this UL Grant is for the PUSCH in dispatching uplink subframe n+k.Here the value of k defines in table 2.Specifically, concerning TDD upstream and downstream configuration (or being called for short upstream and downstream configuration) 1～6, the quantity of sub-frame of uplink is less than or equal to descending sub frame (S frame can be used as descending sub frame), for any descending sub frame n, can pass through a unique k value, configure unique PUSCH synchronous HARQ timing relationship, be reflected in table 2, in a descending sub frame, PUSCH can be do not dispatched, or a PUSCH in sub-frame of uplink can only be dispatched; And concerning TDD upstream and downstream configuration 0, the quantity of sub-frame of uplink is greater than descending sub frame, the PDCCH of each descending sub frame need to dispatch two PUSCH in sub-frame of uplink, for this reason, k value can not be unique, need to use line index (UL index) technology support at PDCCH and dispatch two PUSCH in sub-frame of uplink, for the different PUSCH of index, use different k values.For example, when UE receives PDCCH at descending sub frame 0, its scheduling be the PUSCH in sub-frame of uplink 4 and/or sub-frame of uplink 7; When UE receives PDCCH at descending sub frame 1, its scheduling be the PUSCH in sub-frame of uplink 7 and/or sub-frame of uplink 8.
To PHICH to the timing relationship of PUSCH, in LTE and LTE-A, for the PUSCH independent allocation in each sub-frame of uplink PHICH resource set, suppose that UE receives PHICH at descending sub frame n, this PHICH is used for controlling the PUSCH in sub-frame of uplink n+j.Here the value of j defines in table 2.Specifically, concerning TDD upstream and downstream configuration 1～6, the quantity of sub-frame of uplink is less than or equal to descending sub frame, for any descending sub frame n, can pass through a unique j value, configure unique PUSCH synchronous HARQ timing relationship, be reflected in table 2, in a descending sub frame, PHICH resource set can be do not configured, or the PHICH resource set of a sub-frame of uplink can only be configured; Concerning TDD upstream and downstream configuration 0, the quantity of sub-frame of uplink is greater than descending sub frame, and j value is not unique, but two PHICH resource set are configured respectively at descending sub frame 0 and 5, be PHICH resource 0 and PHICH resource 1, for different PHICH resources, use different j values.For example, when UE receives PHICH at descending sub frame 0, can trigger the PUSCH in sub-frame of uplink 4 and/or sub-frame of uplink 7.
Table 2UL-Grant/PHICH is to the timing relationship table of PUSCH
Secondly, introduce PUSCH in LTE and the LTE-A timing relationship to PHICH.
Concerning TDD upstream and downstream configuration 1～6, in the time that UE receives PHICH in descending sub frame n, what this PHICH indicated is the HARQ-ACK information of the PUSCH in sub-frame of uplink n-h, and the value of h is as shown in table 3.
Concerning TDD upstream and downstream configuration 0, owing to having configured two PHICH resources,, in the time receiving PHICH in the PHICH resource 0 of UE in descending sub frame n, this PHICH indicates the HARQ-ACK information of the PUSCH in sub-frame of uplink n-h; In the PHICH resource 1 of descending sub frame 0 or descending sub frame 5, receive PHICH and work as UE, this PHICH is the HARQ-ACK information of the PUSCH in instruction sub-frame of uplink n-6.
Table 3PUSCH is to the timing relationship table of PHICH
According to the form of above-mentioned three kinds of timing relationships (table 2 and table 3), PUSCH synchronous HARQ timing relationship can determine community (Cell) and adopt the configuration of a certain specific T DD upstream and downstream time, thus realize the synchronous transmission of PUSCH according to this PUSCH synchronous HARQ timing relationship.
And along with the raising of user to transfer of data rate requirement, people have proposed again enhancing (LTE-A) technology of LTE.In LTE-A, by TDD reconfiguration technology, configure the configuration of TDD upstream and downstream by signaling, can make the ratio of current sub-frame of uplink and descending sub frame more meet the ratio of current upstream traffic and downlink traffic, the throughput that is conducive to improve user's upstream and downstream peak rate and improves system, for example, utilize physical layer signaling, broadcast signaling or high-level signaling to indicate the configuration of TDD upstream and downstream.
For the system (hereinafter to be referred as TDD reconfiguration system) that adopts TDD reconfiguration technology, it is the dynamic change along with the upstream and downstream traffic carrying capacity in current area that the TDD upstream and downstream of community configures.And according to the agreement regulation of existing LTE and LTE-A, UE is the TDD upstream and downstream configuration that the system message by broadcasting in community obtains this community, be then configured to index with TDD upstream and downstream, obtain corresponding timing relationship according to table 2 and table 3.But reshuffle in scene at TDD, need to realize the quick switching of TDD upstream and downstream configuration.
For TDD reconfiguration system, because the change of TDD upstream and downstream configuration is more frequent, PUSCH synchronous HARQ timing relationship can not be determined according to existing method before and after switching point.Therefore, be necessary to propose effective technical scheme, to solve the transmission problem of PUSCH in TDD reconfiguration system.
Summary of the invention
The application's object is intended at least solve one of above-mentioned technological deficiency, and transmission method and the subscriber equipment of PUSCH in a kind of TDD reconfiguration system is provided, to make UE under TDD reshuffles mode of operation, and can normal transmission PUSCH.
The application discloses the transmission method of a kind of Physical Uplink Shared Channel (PUSCH), comprising:
UE receives configuration information from base station, and described configuration information configuration UE works in TDD and reshuffles mode of operation, and under TDD reshuffles mode of operation, UE changes the configuration of TDD upstream and downstream according to the instruction of base station;
UE determines the timing relationship of UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH, and detects UL grant and/or PHICH according to determined timing relationship;
UE, according to the UL grant and/or the PHICH that detect, sends PUSCH data according to determined timing relationship.
Preferably, described UE is configured to according to the instruction variation TDD upstream and downstream of base station: the sub-frame of uplink comprising in the radio frames before the configuration of UE variation TDD upstream and downstream is the subset of the interior sub-frame of uplink comprising of radio frames after variation;
The timing relationship of the UL Grant of UE TDD upstream and downstream configuration after changing according to table 4 to the timing relationship of PUSCH, PHICH to PUSCH and PUSCH are to the timing relationship of PHICH as described definite timing relationship:
Table 4
。
Preferably, described UE, according to the UL grant and/or the PHICH that detect, according to determined timing relationship transmission PUSCH data is:
According to described definite timing relationship, in radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation, carry out corresponding synchronous HARQ process in described re-transmission PUSCH subframe position.
Preferably, described UE is configured to according to the instruction variation TDD upstream and downstream of base station: the sub-frame of uplink comprising in the radio frames after the configuration of UE variation TDD upstream and downstream is the subset of the interior sub-frame of uplink comprising of radio frames before variation;
The timing relationship of the UL Grant of UE TDD upstream and downstream configuration before changing according to table 5-1 to the timing relationship of PUSCH, PHICH to PUSCH and PUSCH are to the timing relationship of PHICH as described definite timing relationship:
Table 5-1
Or UE determines the timing relationship of described UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH according to table 5-2:
Table 5-2
。
Preferably, described UE changes TDD upstream and downstream according to the instruction of base station and is configured to: the interior sub-frame of uplink comprising of radio frames before the configuration of UE variation TDD upstream and downstream is not the subset of the interior sub-frame of uplink comprising of radio frames after changing, and changes the subset of the interior sub-frame of uplink comprising of radio frames before the sub-frame of uplink comprising in TDD upstream and downstream configuration radio frames afterwards neither change;
UE determines the timing relationship of described UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH according to table 6 or table 7:
Table 6
Table 7
。
Preferably, UE determines the timing relationship of described UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH according to table 8, table 9 or table 10:
Table 8
Table 9
Table 10
。
Preferably, described UE, according to the UL grant and/or the PHICH that detect, according to determined timing relationship transmission PUSCH data is:
According to described definite timing relationship, in the radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation;
If retransmitting in the radio frames of PUSCH subframe position after variation is sub-frame of uplink, carry out corresponding synchronous HARQ process in described re-transmission PUSCH subframe position; Otherwise, if descending sub frame stops corresponding synchronous HARQ process; If retransmit in the next radio frames of the radio frames of PUSCH subframe position after variation, stop corresponding synchronous HARQ process.
Preferably, if described definite timing relationship is the timing relationship corresponding to TDD upstream and downstream configuration 1,2,3,4 or 6, for being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and in the radio frames after variation, be the subframe of descending sub frame, UE does not detect UL grant and the PHICH of the PUSCH transmission of dispatching this subframe according to described definite timing relationship;
If described definite timing relationship is the timing relationship corresponding to TDD upstream and downstream configuration 0, for being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and in the radio frames after variation, be the subframe of descending sub frame, UE detects the ULgrant of the PUSCH transmission of dispatching this subframe according to described definite timing relationship, and ignore the UL grant of the PUSCH of detected this subframe of scheduling, and UE does not detect the PHICH Group of the PUSCH transmission of dispatching this subframe according to described definite timing relationship.
Preferably, for being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and in the radio frames after variation, be the subframe of descending sub frame, UE does not detect UL grant and the PHICH of the PUSCH transmission of dispatching this subframe according to described definite timing relationship.
Preferably, according to described definite timing relationship, in the radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation;
If retransmitting in the radio frames of PUSCH subframe position after variation is sub-frame of uplink, carry out corresponding synchronous HARQ process in described re-transmission PUSCH subframe position; Otherwise, if descending sub frame is hung up corresponding synchronous HARQ process; If retransmit in the next radio frames of the radio frames of PUSCH subframe position after variation, hang up corresponding synchronous HARQ process.
Preferably, the method further comprises: the synchronous HARQ process of hanging up is recovered, and the method for recovery is:
When change after radio frames in sub-frame of uplink number more than change before radio frames time, for each sub-frame of uplink in the radio frames after changing, search the timing position of the last PUSCH transfer of data of its corresponding synchronous HARQ process according to described definite timing relationship, if described timing position is descending sub frame, recover the synchronous HARQ process of a hang-up.
The disclosed a kind of subscriber equipment of the application, comprising: configuration module, timing relationship processing module and transport module, wherein:
Described configuration module, for receive configuration information from base station, described configuration information configuration UE works in TDD and reshuffles mode of operation, and under TDD reshuffles mode of operation, UE changes the configuration of TDD upstream and downstream according to the instruction of base station;
Described timing relationship processing module, for determining the timing relationship of UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH, and according to determined timing relationship detection UL grant and/or PHICH;
Transport module, for according to the UL grant and/or the PHICH that detect, sends PUSCH data according to determined timing relationship.
As seen from the above technical solution, the transmission method of the PUSCH that the application provides and subscriber equipment, make UE under TDD reshuffles mode of operation, can normal transmission PUSCH, and can be the in the situation that of TDD upstream and downstream configuration frequent variations, there is the PUSCH of many as far as possible sub-frame of uplink to be transmitted, and before and after TDD upstream and downstream configuration variation, have the synchronous PUSCH process of sub-frame of uplink as much as possible to be continued.
Brief description of the drawings
Fig. 1 is the frame structure schematic diagram of the TDD system of LTE;
Fig. 2 is the schematic diagram of TDD reconfiguration technology;
Fig. 3 is the method flow diagram of PUSCH transmission in the application TDD reconfiguration system;
The PUSCH synchronous HARQ process of Fig. 4 the embodiment of the present application one shifts schematic diagram;
Fig. 5 is that the PUSCH synchronous HARQ process of the embodiment of the present application two shifts schematic diagram;
Fig. 6 is that the PUSCH synchronous HARQ process of the embodiment of the present application three shifts schematic diagram;
Fig. 7 is that the PUSCH synchronous HARQ process of the embodiment of the present application four shifts schematic diagram;
Fig. 8 is that the embodiment of the present application five is processed the successional method schematic diagram of synchronous HARQ process;
Fig. 9 is the composition structural representation of the application's one better subscriber equipment.
Embodiment
For making the application's object, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the application is described in further detail.
For making the application's object, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the application is described in further detail.
The application reshuffles (TDD reconfiguration) scene mainly for TDD.Under this scene, along with the dynamic change of upstream and downstream traffic carrying capacity in current area, the TDD upstream and downstream configuration of community can be carried out dynamic-configuration by signaling.TDD reconfiguration technology refers to: certain community adopted a kind of TDD upstream and downstream configuration before the border of TDD upstream and downstream configuration variation, adopts another kind of TDD upstream and downstream configuration after the border changing, and conventionally divides border taking radio frames as unit.As shown in Figure 2, before the border changing, adopt TDD upstream and downstream configuration 0, after the border changing, adopt TDD upstream and downstream configuration 2.
In order to realize the application's object, the application has proposed the transmission method of PUSCH in a kind of TDD reconfiguration system, and as shown in Figure 3, the method comprises the following steps:
Step 301:UE receives the configuration information of base station, and this configuration information configuration UE is operated in TDD and reshuffles mode of operation.
Step 302:UE determines the timing relationship of UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH, and detects UL grant and/or PHICH according to determined timing relationship.
In this application, UE receives TDD upstream and downstream configuration information by signaling, this TDD upstream and downstream configuration information can pass through physical layer signaling, broadcast signaling, Radio Resource control (RRC) signaling or media access control (MAC) signaling and send, and makes like this UE can adapt to fast the demand that upstream and downstream business changes.
The determined timing relationship of this step is used for two radio frames before changing border and afterwards, determines the timing position relevant with PUSCH, particularly:
The transmission PUSCH if certain subframe in the radio frames after changing is scheduled, the timing relationship to the timing relationship of PUSCH and PHICH to PUSCH according to determined ULGrant, detects UL Grant and/or the PHICH of this subframe of scheduling in the radio frames before variation or after changing;
The transmission PUSCH if certain subframe in the radio frames before changing is scheduled, the timing relationship to PHICH according to determined PUSCH, detects the PHICH of this subframe in the radio frames before variation or after variation.
Step 303:UE, according to the UL grant and/or the PHICH that detect, sends PUSCH data according to the determined timing relationship of step 302.
In above-mentioned steps 302, determine that UL Grant to timing relationship, the PHICH of PUSCH to timing relationship and the PUSCH of PUSCH to the method for the timing relationship of PHICH is: the syntagmatic of the TDD upstream and downstream configuration according to the TDD upstream and downstream configuration before changing and after changing is determined.Or, can define a kind of specific TDD upstream and downstream configuration, the UE that works in dynamic TDD mode of operation defers to the timing relationship of the UL Grant of this specific TDD upstream and downstream configuration to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH, described specific TDD upstream and downstream configuration can be indicated or RRC signaling is indicated to UE by system information, or is directly provided by 3GPP agreement.
Or; for the UE that works in dynamic TDD mode of operation; if the configuration of the TDD upstream and downstream of radio frames n and radio frames n+1 is identical, the timing relationship of the UL Grant of TDD upstream and downstream configuration that UE defers to radio frames n or radio frames n+1 to the timing relationship of PUSCH, PHICH to PUSCH and PUSCH are to the timing relationship of PHICH; If the configuration of the TDD upstream and downstream of radio frames n and radio frames n+1 is not identical, UE defers to the timing relationship of the UL Grant of specific TDD upstream and downstream configuration to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH, described specific TDD upstream and downstream configuration can be indicated or RRC signaling is indicated to UE by system information, or directly provided by 3GPP agreement, the timing relationship of the UL Grant of configuration 0 that for example defers to TDD upstream and downstream to the timing relationship of PUSCH, PHICH to PUSCH and PUSCH are to the timing relationship of PHICH.
Divide three kinds of situations explanation UE to reshuffle timing relationship to the timing relationship of PUSCH, PHICH to PUSCH of how to confirm UL Grant under mode of operation and the PUSCH timing relationship to PHICH at TDD below, and how the PUSCH synchronous HARQ process of the radio frames after synchronous HARQ process and the variation of the PUSCH to the sub-frame of uplink in the radio frames before TDD upstream and downstream configuration variation is connected.
The sub-frame of uplink comprising in radio frames before situation 1:TDD upstream and downstream configuration variation is the subset of the interior sub-frame of uplink comprising of radio frames after changing.
In this case, UE adopts the PUSCH synchronous HARQ timing relationship of the TDD upstream and downstream configuration after changing, specifically as shown in table 4.For example, suppose that the TDD upstream and downstream configuration before changing is TDD upstream and downstream configuration 1, TDD upstream and downstream configuration after variation is TDD upstream and downstream configuration 0, because TDD upstream and downstream configuration 1 sub-frame of uplink comprising is the subset of TDD upstream and downstream configuration 0 sub-frame of uplink comprising, according to table 4, UE adopts the PUSCH synchronous HARQ timing relationship of TDD upstream and downstream configuration 0.
Table 4
The marching method of PUSCH synchronous HARQ process:
According to above-mentioned definite timing relationship, in the radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation, carry out corresponding synchronous HARQ process in this position.In other words, according to above-mentioned definite timing relationship, in radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each sub-frame of uplink in the radio frames before TDD upstream and downstream configuration variation, carry out the synchronous HARQ process of corresponding sub-frame of uplink in this position, related sub-frame of uplink all refers to the sub-frame of uplink in the radio frames before TDD upstream and downstream configuration variation here.Because the sub-frame of uplink comprising in the radio frames before TDD upstream and downstream configuration variation is the subset of the sub-frame of uplink that comprises in the radio frames after changing, make according to the PUSCH synchronous HARQ timing relationship of the TDD upstream and downstream configuration after changing, one surely in the radio frames after variation for the sub-frame of uplink in the radio frames before changing finds corresponding re-transmission PUSCH subframe position, carry out the relevant position that the PUSCH synchronous HARQ process of the sub-frame of uplink therefore, comprising in the radio frames before variation can both be transferred in the radio frames after variation.
Different synchronous HARQ processes is by " crossing program number " unique identification.Not adopting in the system of TDD reconfiguration technology, the TDD upstream and downstream configuration of UE does not change, and therefore, each synchronous HARQ process of UE is carried out in corresponding subframe position according to set timing relationship.Having adopted in the system of TDD reconfiguration technology, the TDD upstream and downstream of UE configures dynamic change, and therefore, each synchronous HARQ process of UE may be carried out according to the determined timing relationship of step 302 in different subframe position.The method that the preceding paragraph falls to describing for determining in which subframe position of the radio frames of each synchronous HARQ process after variation of UE is carried out.
The re-transmission PUSCH subframe position of certain sub-frame of uplink refers to: the position of carrying out the synchronous HARQ process of this sub-frame of uplink in next radio frames of determining according to the timing relationship of this sub-frame of uplink place radio frames, the PUSCH that this synchronous HARQ process may be carried out described sub-frame of uplink retransmits or new biography PUSCH data.
Below by an embodiment, the specific embodiment mode of situation 1 is illustrated.
Embodiment mono-:
Suppose that UE works in TDD and reshuffles mode of operation, it before the border changing, is TDD upstream and downstream configuration 2, it after the border changing, is TDD upstream and downstream configuration 1, according to table 4, UE defers to the timing relationship of the UL Grant of TDD upstream and downstream configuration 1 to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH.
According to the timing relationship of TDD upstream and downstream configuration 1, UE is the sub-frame of uplink 2 at radio frames n+1 in the re-transmission PUSCH of the sub-frame of uplink 2 of radio frames n subframe position, the sub-frame of uplink 2 that the PUSCH synchronous HARQ process of the sub-frame of uplink 2 of radio frames n is transferred to radio frames n+1 like this carries out, as shown in Figure 4.
Adopt this method, before and after TDD upstream and downstream configuration variation, the synchronous PUSCH process of all sub-frame of uplink is continued.
The sub-frame of uplink comprising in radio frames after situation 2:TDD upstream and downstream configuration variation is the subset of the interior sub-frame of uplink comprising of radio frames before changing.
In this case, UE can adopt the PUSCH synchronous HARQ timing relationship of the TDD upstream and downstream configuration before variation, and the sub-frame of uplink comprising in the radio frames after variation can be scheduled, specifically as shown in Table 5-1.For example, suppose that the TDD upstream and downstream configuration after changing is TDD upstream and downstream configuration 1, TDD upstream and downstream configuration before variation is TDD upstream and downstream configuration 0, because TDD upstream and downstream configuration 1 sub-frame of uplink comprising is the subset of TDD upstream and downstream configuration 0 sub-frame of uplink comprising, according to table 5-1, UE adopts the PUSCH synchronous HARQ timing relationship of TDD upstream and downstream configuration 0.
Table 5-1
Above-mentioned situation 2 times, also can adopt the timing relationship as shown in table 5-2:
Table 5-2
The marching method of PUSCH synchronous HARQ process:
First,, according to above-mentioned definite timing relationship, in the radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation;
If certain retransmits in the radio frames of PUSCH subframe position after variation is sub-frame of uplink, carry out corresponding synchronous HARQ process in this position; Otherwise, if descending sub frame stops corresponding synchronous HARQ process; If certain retransmits in the next radio frames of the radio frames of PUSCH subframe position after variation, stop corresponding synchronous HARQ process.For example: suppose that the TDD upstream and downstream configuration before changing is that TDD upstream and downstream configures at 0 o'clock, the subframe position of the re-transmission PUSCH of the subframe 9 in the radio frames before variation is the subframe 2 of the next radio frames of the radio frames after changing, therefore, the synchronous HARQ process of this subframe 9 stops.But, there is a kind of situation of exception: the TDD upstream and downstream configuration of assumed wireless frame n and radio frames n+1 is identical, and the configuration of the TDD upstream and downstream of radio frames n+1 and radio frames n+2 is different, if the re-transmission PUSCH subframe position of certain sub-frame of uplink of radio frames n is in radio frames n+2, and in radio frames n+2, this re-transmission PUSCH subframe position is sub-frame of uplink, so, the synchronous HARQ process of the described sub-frame of uplink in radio frames n does not stop, but corresponding re-transmission in PUSCH subframe position carried out in radio frames n+2.
As previously mentioned, situation 2 times, UE adopts the PUSCH synchronous HARQ timing relationship of the TDD upstream and downstream configuration before changing, because the sub-frame of uplink comprising in the radio frames after 2 times TDD upstream and downstream configuration variation of situation is the subset of the sub-frame of uplink that comprises in the radio frames before changing, that is to say that the descending sub frame comprising in the radio frames after TDD upstream and downstream configuration variation is more than the radio frames before changing, therefore, there are some subframes like this, in its TDD upstream and downstream configuration before variation, it is sub-frame of uplink, and be descending sub frame in the configuration of TDD upstream and downstream after variation.For some such subframes, if according to the PUSCH synchronous HARQ timing relationship of the TDD upstream and downstream configuration before changing, may remove to detect its corresponding UL grant and PHICH, but obvious this detection there is no need, for this reason, the application processes in the following way:
If described definite timing relationship is corresponding to TDD upstream and downstream configuration 1, 2, 3, 4 or 6 timing relationship, according to table 2, because the UL-Grant in 1 subframe under the configuration of above-mentioned TDD upstream and downstream or PHICH can only dispatch the PUSCH of 1 " sub-frame of uplink ", therefore, for being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and the subframe that in the radio frames after variation is descending sub frame (that is to say, if certain subframe is sub-frame of uplink in the corresponding TDD upstream and downstream configuration of definite timing relationship, and be descending sub frame in radio frames after variation), UE does not detect UL grant and the PHICH of the PUSCH transmission of dispatching this subframe according to described definite timing relationship,
If described definite timing relationship is the timing relationship corresponding to TDD upstream and downstream configuration 0, according to table 2, UL-Grant in 1 subframe or PHICH can dispatch the PUSCH of 2 " sub-frame of uplink ", therefore, for being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and in the radio frames after variation, be the subframe of descending sub frame, on the one hand, UE detects the UL grant of the PUSCH transmission of dispatching this subframe according to described definite timing relationship, and ignore the UL grant of the PUSCH of detected this subframe of scheduling, on the other hand, UE does not detect the PHICH Group of the PUSCH transmission of dispatching this subframe according to described definite timing relationship.
Below by embodiment bis-and embodiment tri-, the embodiment of situation 2 is illustrated.
Embodiment bis-:
Suppose that UE works in TDD and reshuffles mode of operation, it before the border changing, is TDD upstream and downstream configuration 0, it after the border changing, is TDD upstream and downstream configuration 2, according to table 5-1, UE defers to the timing relationship of the UL Grant of TDD upstream and downstream configuration 0 to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH.
Referring to Fig. 5, timing relationship according to the UL Grant of TDD upstream and downstream configuration 0 to PUSCH, the upper line index (UL index) of the UL grant that UE detects in the subframe 0 of radio frames n+1 is 01, the PUSCH of scheduling radio frames n+1 subframe 4, and radio frames n+1 subframe 4 is descending sub frames, therefore, UE ignores the UL grant that the UL index detecting in the subframe 0 of radio frames n+1 equals 01.Timing relationship according to the PHICH of TDD upstream and downstream configuration 0 to the timing relationship of PUSCH and PUSCH to PHICH, I in the subframe 0 of radio frames n+1
pHICHwhat=0 PHICH determined is the re-transmission of the PUSCH of subframe 4, and the subframe 4 of radio frames n+1 is descending sub frames, and therefore, UE is I in the subframe 0 of radio frames n+1 not
pHICHin=0 PHICH resource, carry out PHICH detection.
Adopt this method in the situation that of TDD upstream and downstream configuration frequent variations, have the synchronous PUSCH process of many as far as possible sub-frame of uplink to be continued, and the workload of change agreement is little.
Embodiment tri-:
Suppose that UE works in TDD and reshuffles mode of operation, it before the border changing, is TDD upstream and downstream configuration 0, it after the border changing, is TDD upstream and downstream configuration 1, according to table 5-1, UE defers to the timing relationship of the UL Grant of TDD upstream and downstream configuration 0 to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH.
According to the timing relationship of TDD upstream and downstream configuration 0, UE is the subframe 3 at radio frames n+1 in the re-transmission PUSCH of the sub-frame of uplink 2 of radio frames n subframe position, the subframe 3 of radio frames n+1 is sub-frame of uplink in TDD upstream and downstream configuration 1, the sub-frame of uplink 3 that the PUSCH synchronous HARQ process of the sub-frame of uplink 2 of radio frames n is transferred to radio frames n+1 like this carries out, as shown in Figure 6.
According to the timing relationship of TDD upstream and downstream configuration 0, UE is the subframe 4 at radio frames n+1 in the re-transmission PUSCH of the sub-frame of uplink 3 of radio frames n subframe position, the subframe 4 of radio frames n+1 is descending sub frame in TDD upstream and downstream configuration 1, the PUSCH synchronous HARQ process of the sub-frame of uplink 3 of radio frames n stops like this, as shown in Figure 6.
According to the timing relationship of TDD upstream and downstream configuration 0, UE is the subframe 2 at radio frames n+2 in the re-transmission PUSCH of the sub-frame of uplink 9 of radio frames n subframe position, and the PUSCH synchronous HARQ process of the sub-frame of uplink 9 of radio frames n stops, as shown in Figure 6.
Adopt this method in the situation that of TDD upstream and downstream configuration frequent variations, to make the variation of agreement less.
The sub-frame of uplink comprising in radio frames after situation 3:TDD upstream and downstream configuration variation is not the subset of the sub-frame of uplink that comprises in the radio frames before changing, and the subset of the sub-frame of uplink comprising in the radio frames of the sub-frame of uplink comprising in radio frames before changing after neither changing.
In this case, the application provides two kinds of modes of preferably determining corresponding timing relationship.
First kind of way is: determine in accordance with the following steps corresponding timing relationship:
A) UE calculates the intersection of the sub-frame of uplink in the radio frames after sub-frame of uplink and the variation in the radio frames before changing.
B) at existing LTE frame structure 2 (FS2, Frame structure2) the middle intersection that comprises described sub-frame of uplink of searching, and the TDD upstream and downstream configuration that sub-frame of uplink number is minimum, according to the timing relationship work of this TDD upstream and downstream configuration, specifically as shown in table 6.
For example, suppose that the TDD upstream and downstream configuration before changing is TDD upstream and downstream configuration 3, the TDD upstream and downstream configuration after variation is that 1 PUSCH of TDD upstream and downstream configuration is TDD upstream and downstream configuration 6 with reference to timing relationship.
Table 6
The second way is: employing can ensure that the PUSCH of the sub-frame of uplink in the radio frames before variation obtains the timing relationship of the TDD upstream and downstream configuration of transmission, specifically as shown in table 7:
Table 7
The marching method of PUSCH synchronous HARQ process is:
First,, according to above-mentioned definite timing relationship, in the radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation;
If certain retransmits in the radio frames of PUSCH subframe position after variation is sub-frame of uplink, carry out corresponding synchronous HARQ process in this position; Otherwise, if descending sub frame stops corresponding synchronous HARQ process; If certain retransmits in the next radio frames of the radio frames of PUSCH subframe position after variation, stop corresponding synchronous HARQ process.But, there is a kind of situation of exception: the TDD upstream and downstream configuration of assumed wireless frame n and radio frames n+1 is identical, and the configuration of the TDD upstream and downstream of radio frames n+1 and radio frames n+2 is different, if the re-transmission PUSCH subframe position of certain sub-frame of uplink of radio frames n is in radio frames n+2, and in radio frames n+2, this re-transmission PUSCH subframe position is sub-frame of uplink, so, the synchronous HARQ process of the described sub-frame of uplink in radio frames n does not stop, but corresponding re-transmission in PUSCH subframe position carried out in radio frames n+2.
Be similar to situation 2, need to consider whether to be necessary to detect some UL grant and PHICH, particularly: for being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and in the radio frames after variation, be the subframe of descending sub frame, UE does not detect UL grant and the PHICH of the PUSCH transmission of dispatching this subframe according to described definite timing relationship.
Below by an embodiment, the embodiment of situation 3 is illustrated.
Embodiment tetra-:
Suppose that UE works in TDD and reshuffles mode of operation, be TDD upstream and downstream configuration 1 before the border changing, and is TDD upstream and downstream configuration 3 after the border changing.According to table 6, UE defers to the timing relationship of the UL Grant of TDD upstream and downstream configuration 6 to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH.
According to the timing relationship of TDD upstream and downstream configuration 6, UE is the subframe 3 at radio frames n+1 in the re-transmission PUSCH of the sub-frame of uplink 2 of radio frames n subframe position, the subframe 3 of radio frames n+1 is sub-frame of uplink in TDD upstream and downstream configuration 6, the sub-frame of uplink 3 that the PUSCH synchronous HARQ process of the sub-frame of uplink 2 of radio frames n is transferred to radio frames n+1 like this carries out, as shown in Figure 7.
According to the timing relationship of TDD upstream and downstream configuration 6, UE is the subframe 8 at radio frames n+1 in the re-transmission PUSCH of the sub-frame of uplink 7 of radio frames n subframe position, the subframe 8 of radio frames n+1 is descending sub frame in TDD upstream and downstream configuration 6, the PUSCH synchronous HARQ process of the sub-frame of uplink 7 of radio frames n stops like this, as shown in Figure 7.
According to the timing relationship of TDD upstream and downstream configuration 6, UE is the subframe 2 at radio frames n+2 in the re-transmission PUSCH of the sub-frame of uplink 8 of radio frames n subframe position, and the PUSCH synchronous HARQ process of the sub-frame of uplink 8 of radio frames n stops, as shown in Figure 7.
Adopt this method in the situation that of TDD upstream and downstream configuration frequent variations, to make the variation of agreement less.
Comprehensive above-mentioned situation 1, situation 2 and situation 3, UE under TDD reshuffles mode of operation, the TDD upstream and downstream according to the TDD upstream and downstream configuration before changing and after changing configure definite timing relationship in table 8 to table 10.Wherein: table 8 is merging of table 4, table 5-1 and table 6, table 9 is merging of table 4, table 5-1 and table 7, and table 10 is merging of table 4, table 5-2 and table 7.
Table 8
Table 9
Table 10
As previously mentioned, in two related radio frames of TDD upstream and downstream configuration variation, if the continuity of certain HARQ process cannot keep in previous radio frames, this HARQ process will stop, if do not have transmission success also can only abandon corresponding to the upstream data of this HARQ process, need to rely on high-rise re-transmission and ensure its transmission.For this problem, the application further proposes one and improves one's methods, its main thought is: the continuity that keeps as far as possible HARQ process, for HARQ process that can not be continuous, for example: retransmitting in PUSCH subframe position is a descending sub frame, this HARQ process is hung up, in the suitable moment, recover again this HARQ process, thereby the upstream data of hanging up is before proceeded to transmission; For HARQ process that can be continuous, carry out incessantly HARQ transmission.
Table 11 is uplink synchronous HARQ process sums of various TDD upstream and downstream configurations.During the application improves one's methods, be the TDD upstream and downstream configuration look-up table 11 related according to TDD upstream and downstream reconfiguration course, the maximum of the uplink synchronous HARQ process sum obtaining is crossed to number of passes as maximum HARQ, and base station and UE cross number of passes according to this maximum HARQ and process the PUSCH transmission in TDD reconfiguration course.
It can be with high-level signaling that this maximum HARQ crosses number of passes, for example RRC signaling or broadcast signaling,
UE can determine that maximum HARQ crosses number of passes by following several modes:
1) the TDD upstream and downstream configuration look-up table 11 related according to TDD upstream and downstream reconfiguration course, crosses number of passes using the maximum in the uplink synchronous HARQ process sum obtaining as described maximum HARQ;
2), by receiving high-level signaling, for example RRC signaling or broadcast signaling, carry out this maximum HARQ of semi-static configuration and cross number of passes;
3) obtain this maximum HARQ and cross number of passes by receiving information of other high-rise configurations, for example, TDD upstream and downstream configuration of high-rise semi-static instruction, and obtain maximum HARQ according to this TDD upstream and downstream configuration according to table 11 and cross number of passes;
4) in standard, the maximum HARQ of predefine crosses number of passes, for example, equal 7.
The uplink synchronous HARQ of table 11:TDD upstream and downstream configuration crosses number of passes
| The configuration of TDD upstream and downstream | Uplink synchronous HARQ process sum |
| 0 | 7 |
| 1 | 4 |
| 2 | 2 |
| 3 | 3 |
| 4 | 2 |
| 5 | 1 |
| 6 | 6 |
For example, suppose that base station can reshuffle in all 7 kinds of TDD upstream and downstreams configurations, to cross number of passes can be 7 to maximum HARQ, and this is because the synchronous HARQ that TDD upstream and downstream configuration 0 needs is crossed number of passes at most and is 7.Again for example, suppose that base station can reshuffle in TDD upstream and downstream configuration 3,4 and 5, to cross number of passes can be 3 to maximum HARQ, and this is because the synchronous HARQs that TDD upstream and downstream configuration 3 needs are crossed number of passes at most and are 3.
Next,, according to the determined timing relationship of step 302 (below the TDD upstream and downstream configuration corresponding to this timing relationship being called to " with reference to upstream and downstream configuration "), UE judges whether to send new data or data retransmission to a synchronous HARQ process.To a sub-frame of uplink A, according to the timing relationship of the synchronous HARQ transmission with reference to upstream and downstream configuration, determine in identical synchronous HARQ process the timing position to a front transmitting uplink data that should sub-frame of uplink A, if sub-frame of uplink B of physical presence on this timing position, the transfer of data in sub-frame of uplink A is new data or the data re-transmission of the synchronous HARQ process to sub-frame of uplink B.In contrast, if actual on this timing position is a descending sub frame, can not directly obtain synchronous HARQ process corresponding to transfer of data in sub-frame of uplink A, like this, synchronous HARQ process corresponding to transfer of data in sub-frame of uplink A determined according to the sub-frame of uplink that can directly obtain corresponding synchronous HARQ process, and ensured the continuity of HARQ process number.
Describing the application below in conjunction with embodiment improves one's methods and how specifically implements.
Embodiment five:
First describe a kind of definite method with reference to upstream and downstream configuration, that is: determine with reference to upstream and downstream configuration according to the actual uplink downstream arrangements of radio frames n and n+1, and be applied to all sub-frame of uplink in radio frames n+1 with reference to upstream and downstream configuration.On the one hand, be new data or the re-transmission to which synchronous HARQ process according to this PUSCH transmission that configures the sub-frame of uplink of determining radio frames n with reference to upstream and downstream; On the other hand, configure the UL Grant of PUSCH transmission of the sub-frame of uplink of determining scheduling radio frames n or the PHICH timing relationship to PUSCH with reference to upstream and downstream according to this.
As shown in table 12 is a kind of possible definite method with reference to upstream and downstream configuration.The structure principle of table 12 is that all sub-frame of uplink of guarantee can be dispatched; Be all the situation of 10ms HARQ RTT to the actual uplink downstream arrangements of radio frames n and n+1, avoid using the reference upstream and downstream configuration of non-10ms HARQ RTT as far as possible.Can be not unique according to the available form of this principle, table 12 is one of them example just.
Table 12
Configure to describe the present embodiment below in conjunction with the reference upstream and downstream of table 12 and process the successional method of synchronous HARQ process, but the successional method of processing synchronous HARQ process of the present embodiment is not limited to the reference upstream and downstream configuration of use table 12.
As shown in Figure 8, the actual uplink downstream arrangements of assumed wireless frame x01 and x02 is 0; Change in the configuration of the boundary TDD of radio frames x02 and x03 upstream and downstream, and the actual uplink downstream arrangements of radio frames x03 and x04 is 1; Then, change again in the configuration of the boundary TDD of radio frames x04 and x05 upstream and downstream, the TDD upstream and downstream configuration of radio frames x05 and x06 becomes again configuration 0.The reference upstream and downstream of assumed wireless frame x01 is configured to configure 0, and according to table 9, the reference upstream and downstream configuration of radio frames x02～x06 is followed successively by 0,0,1,0 and 0.
Like this, because the actual uplink downstream arrangements of radio frames x03 and x04 is configuration 1, the sub-frame of uplink number that it comprises is less, and only having sequence number is that 7,1,3 and 4 synchronous HARQ process can keep continuity, and the synchronous HARQ process that sequence number is 2,5 and 6 will be by temporary suspension.Specifically, to subframe x13, although actual uplink downstream arrangements is configuration 1, but remain configuration 0 with reference to upstream and downstream configuration, so be according to the last transfer of data timing of finding its corresponding synchronous HARQ process with reference to upstream and downstream configuration 0, be subframe x12, so its corresponding HARQ process number is 3; To subframe x14, it is configuration 1 with reference to upstream and downstream configuration, thus be that to find the last transfer of data timing of its corresponding synchronous HARQ process according to reference configuration 1 be subframe x13, so its corresponding HARQ process number is 3; And to subframe x22, its corresponding HARQ process number is 2, can not find the sub-frame of uplink of corresponding its synchronous HARQ process at radio frames x03 and x04, so this synchronous HARQ process is suspended.
Next, at radio frames x05 and x06, because sub-frame of uplink number reverts to more state, HARQ process 7,1,3 and 4 still keeps continuity, and the HARQ process 2,5 and 6 of hanging up is before recovered.Specifically, as shown in Figure 8, to subframe x15, it is configuration 0 with reference to upstream and downstream configuration, thus be that to find the last transfer of data timing of its corresponding synchronous HARQ process according to reference configuration 0 be subframe x14, so its corresponding HARQ process number is 3; To subframe x16, it is configuration 0 with reference to upstream and downstream configuration, thus be that to find the last transfer of data timing of its corresponding synchronous HARQ process according to reference configuration 0 be subframe x15, so its corresponding HARQ process number is 3.And to subframe x23, it is configuration 0 with reference to upstream and downstream configuration, so be that to find the last transfer of data timing of its corresponding HARQ instance process according to reference configuration 0 be subframe x33, but subframe x33 is descending sub frame, can not directly determine the HARQ process number that subframe x23 is corresponding, because subframe x15 corresponding HARQ instance process number 3, for the continuity of keep-process number, can draw subframe x23 corresponding HARQ instance process number 2, like this, recover new data transmission or the data re-transmission of the HARQ process number 2 to hanging up before at subframe x23.
Corresponding to said method, disclosed herein as well is a kind of subscriber equipment, as shown in Figure 9, this subscriber equipment comprises: configuration module, timing relationship processing module and transport module, wherein:
Described configuration module, for receive configuration information from base station, described configuration information configuration UE works in TDD and reshuffles mode of operation, and under TDD reshuffles mode of operation, UE changes the configuration of TDD upstream and downstream according to the instruction of base station;
Described timing relationship processing module, for determining the timing relationship of UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH, and according to determined timing relationship detection UL grant and/or PHICH;
Transport module, for according to the UL grant and/or the PHICH that detect, sends PUSCH data according to determined timing relationship.
The application has provided a kind of TDD and has reshuffled transmission method and the subscriber equipment of PUSCH under mode of operation, make UE under TDD reshuffles mode of operation, can normal transmission PUSCH, and can be the in the situation that of TDD upstream and downstream configuration frequent variations, there is the PUSCH of many as far as possible sub-frame of uplink to be transmitted, and before and after TDD upstream and downstream configuration variation, there is the synchronous PUSCH process of sub-frame of uplink as much as possible to be continued.
The foregoing is only the application's preferred embodiment, not in order to limit the application, all within the application's spirit and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of the application's protection.
Claims (12)
1. a transmission method for Physical Uplink Shared Channel (PUSCH), is characterized in that, comprising:
UE receives configuration information from base station, and described configuration information configuration UE works in TDD and reshuffles mode of operation, and under TDD reshuffles mode of operation, UE changes the configuration of TDD upstream and downstream according to the instruction of base station;
UE determines the timing relationship of UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH, and detects UL grant and/or PHICH according to determined timing relationship;
UE, according to the UL grant and/or the PHICH that detect, sends PUSCH data according to determined timing relationship.
2. method according to claim 1, is characterized in that:
Described UE changes TDD upstream and downstream according to the instruction of base station and is configured to: the sub-frame of uplink comprising in the radio frames before the configuration of UE variation TDD upstream and downstream is the subset of the interior sub-frame of uplink comprising of radio frames after changing;
The timing relationship of the UL Grant of UE TDD upstream and downstream configuration after changing according to table 4 to the timing relationship of PUSCH, PHICH to PUSCH and PUSCH are to the timing relationship of PHICH as described definite timing relationship:
Table 4
。
3. method according to claim 2, is characterized in that, described UE, according to the UL grant and/or the PHICH that detect, according to determined timing relationship transmission PUSCH data is:
According to described definite timing relationship, in radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation, carry out corresponding synchronous HARQ process in described re-transmission PUSCH subframe position.
4. method according to claim 1, is characterized in that:
Described UE changes TDD upstream and downstream according to the instruction of base station and is configured to: the sub-frame of uplink comprising in the radio frames after the configuration of UE variation TDD upstream and downstream is the subset of the interior sub-frame of uplink comprising of radio frames before changing;
The timing relationship of the UL Grant of UE TDD upstream and downstream configuration before changing according to table 5-1 to the timing relationship of PUSCH, PHICH to PUSCH and PUSCH are to the timing relationship of PHICH as described definite timing relationship:
Table 5-1
Or UE determines the timing relationship of described UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH according to table 5-2:
Table 5-2
。
5. method according to claim 1, is characterized in that:
Described UE changes TDD upstream and downstream according to the instruction of base station and is configured to: the interior sub-frame of uplink comprising of radio frames before the configuration of UE variation TDD upstream and downstream is not the subset of the interior sub-frame of uplink comprising of radio frames after changing, and changes the subset of the interior sub-frame of uplink comprising of radio frames before the sub-frame of uplink comprising in TDD upstream and downstream configuration radio frames afterwards neither change;
UE determines the timing relationship of described UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH according to table 6 or table 7:
Table 6
Table 7
。
6. method according to claim 1, is characterized in that:
UE determines the timing relationship of described UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH according to table 8, table 9 or table 10:
Table 8
Table 9
Table 10
。
7. according to the method described in claim 4 to 6 any one, it is characterized in that, described UE, according to the UL grant and/or the PHICH that detect, according to determined timing relationship transmission PUSCH data is:
According to described definite timing relationship, in the radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation;
If retransmitting in the radio frames of PUSCH subframe position after variation is sub-frame of uplink, carry out corresponding synchronous HARQ process in described re-transmission PUSCH subframe position; Otherwise, if descending sub frame stops corresponding synchronous HARQ process; If retransmit in the next radio frames of the radio frames of PUSCH subframe position after variation, stop corresponding synchronous HARQ process.
8. method according to claim 4, is characterized in that:
If described definite timing relationship is the timing relationship corresponding to TDD upstream and downstream configuration 1,2,3,4 or 6, for being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and in the radio frames after variation, be the subframe of descending sub frame, UE does not detect UL grant and the PHICH of the PUSCH transmission of dispatching this subframe according to described definite timing relationship;
If described definite timing relationship is the timing relationship corresponding to TDD upstream and downstream configuration 0, for being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and in the radio frames after variation, be the subframe of descending sub frame, UE detects the ULgrant of the PUSCH transmission of dispatching this subframe according to described definite timing relationship, and ignore the UL grant of the PUSCH of detected this subframe of scheduling, and UE does not detect the PHICH Group of the PUSCH transmission of dispatching this subframe according to described definite timing relationship.
9. method according to claim 5, is characterized in that:
For being sub-frame of uplink in the configuration of the corresponding TDD upstream and downstream of described definite timing relationship, and in the radio frames after variation, be the subframe of descending sub frame, UE does not detect UL grant and the PHICH of the PUSCH transmission of dispatching this subframe according to described definite timing relationship.
10. according to the method described in claim 4,5,6,8 or 9, it is characterized in that:
According to described definite timing relationship, in the radio frames after variation, find corresponding re-transmission PUSCH subframe position respectively for each synchronous HARQ process in the radio frames before TDD upstream and downstream configuration variation;
If retransmitting in the radio frames of PUSCH subframe position after variation is sub-frame of uplink, carry out corresponding synchronous HARQ process in described re-transmission PUSCH subframe position; Otherwise, if descending sub frame is hung up corresponding synchronous HARQ process; If retransmit in the next radio frames of the radio frames of PUSCH subframe position after variation, hang up corresponding synchronous HARQ process.
11. methods according to claim 10, is characterized in that:
The method further comprises: the synchronous HARQ process of hanging up is recovered, and the method for recovery is:
When change after radio frames in sub-frame of uplink number more than change before radio frames time, for each sub-frame of uplink in the radio frames after changing, search the timing position of the last PUSCH transfer of data of its corresponding synchronous HARQ process according to described definite timing relationship, if described timing position is descending sub frame, recover the synchronous HARQ process of a hang-up.
12. 1 kinds of subscriber equipmenies, is characterized in that, comprising: configuration module, timing relationship processing module and transport module, wherein:
Described configuration module, for receive configuration information from base station, described configuration information configuration UE works in TDD and reshuffles mode of operation, and under TDD reshuffles mode of operation, UE changes the configuration of TDD upstream and downstream according to the instruction of base station;
Described timing relationship processing module, for determining the timing relationship of UL Grant to the timing relationship of PUSCH, PHICH to PUSCH and the PUSCH timing relationship to PHICH, and according to determined timing relationship detection UL grant and/or PHICH;
Transport module, for according to the UL grant and/or the PHICH that detect, sends PUSCH data according to determined timing relationship.
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| CN201310112401.1A CN104080161A (en) | 2013-03-29 | 2013-04-02 | Physical uplink shared channel transmission method and user equipment |
| PCT/KR2014/002649 WO2014157979A1 (en) | 2013-03-29 | 2014-03-28 | Transmission method on physical uplink shared channel and user equipment |
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|---|---|---|---|---|
| WO2017132840A1 (en) * | 2016-02-02 | 2017-08-10 | Nec Corporation | Methods and apparatuses for performing uplink scheduling and ul transmission |
| CN107294664A (en) * | 2016-03-31 | 2017-10-24 | 上海贝尔股份有限公司 | Method and apparatus for communication |
| WO2018081999A1 (en) * | 2016-11-04 | 2018-05-11 | 华为技术有限公司 | Information transmission method, network device, and terminal device |
| WO2018120107A1 (en) * | 2016-12-30 | 2018-07-05 | 华为技术有限公司 | Communication method, network device, and terminal device |
| WO2020024855A1 (en) * | 2018-08-03 | 2020-02-06 | 电信科学技术研究院有限公司 | Data retransmission method and apparatus and terminal |
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| CN109275192B (en) * | 2017-07-18 | 2022-12-13 | 华为技术有限公司 | Method and device for transmitting information |
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| WO2010049587A1 (en) * | 2008-10-31 | 2010-05-06 | Nokia Corporation | Dynamic allocation of subframe scheduling for time division duplex operation in a packet-based wireless communication system |
| CN106059656B (en) * | 2011-03-24 | 2019-06-25 | Lg电子株式会社 | For sending/receiving the method and device thereof of signal |
| KR101820742B1 (en) * | 2011-05-30 | 2018-01-22 | 삼성전자 주식회사 | Mobile communication system and method for transmitting data thereof |
| US9137804B2 (en) * | 2011-06-21 | 2015-09-15 | Mediatek Inc. | Systems and methods for different TDD configurations in carrier aggregation |
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2013
- 2013-04-02 CN CN201310112401.1A patent/CN104080161A/en active Pending
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- 2014-03-28 WO PCT/KR2014/002649 patent/WO2014157979A1/en active Application Filing
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| WO2017132840A1 (en) * | 2016-02-02 | 2017-08-10 | Nec Corporation | Methods and apparatuses for performing uplink scheduling and ul transmission |
| US10880908B2 (en) | 2016-02-02 | 2020-12-29 | Nec Corporation | Methods and apparatuses for performing uplink scheduling and UL transmission |
| CN107294664A (en) * | 2016-03-31 | 2017-10-24 | 上海贝尔股份有限公司 | Method and apparatus for communication |
| CN107294664B (en) * | 2016-03-31 | 2021-03-12 | 上海诺基亚贝尔股份有限公司 | Method and apparatus for communication |
| WO2018081999A1 (en) * | 2016-11-04 | 2018-05-11 | 华为技术有限公司 | Information transmission method, network device, and terminal device |
| US20190260517A1 (en) * | 2016-11-04 | 2019-08-22 | Huawei Technologies Co., Ltd. | Method, Network Device, and Terminal Device For Transmitting Information |
| US10965408B2 (en) | 2016-11-04 | 2021-03-30 | Huawei Technologies Co., Ltd. | Method, network device, and terminal device for transmitting information |
| WO2018120107A1 (en) * | 2016-12-30 | 2018-07-05 | 华为技术有限公司 | Communication method, network device, and terminal device |
| WO2020024855A1 (en) * | 2018-08-03 | 2020-02-06 | 电信科学技术研究院有限公司 | Data retransmission method and apparatus and terminal |
| US11166299B2 (en) | 2018-08-03 | 2021-11-02 | Datang Mobile Communications Equipment Co., Ltd. | Data retransmission method, device and terminal |
| CN113597805A (en) * | 2019-03-27 | 2021-11-02 | 鸿颖创新有限公司 | Method and apparatus for processing overlapping PUSCH durations |
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| WO2014157979A1 (en) | 2014-10-02 |
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